PMID: 12775528May 31, 2003Paper

Combined support for wholesale taxic atavism in gavialine crocodylians

Systematic Biology
John GatesyCheryl Hayashi

Abstract

Morphological and molecular data sets favor robustly supported, contradictory interpretations of crocodylian phylogeny. A longstanding perception in the field of systematics is that such significantly conflicting data sets should be analyzed separately. Here we utilize a combined approach, simultaneous analyses of all relevant character data, to summarize common support and to reconcile discrepancies among data sets. By conjoining rather than separating incongruent classes of data, secondary phylogenetic signals emerge from both molecular and morphological character sets and provide solid evidence for a unified hypothesis of crocodylian phylogeny. Simultaneous analyses of four gene sequences and paleontological data suggest that putative adaptive convergences in the jaws of gavialines (gavials) and tomistomines (false gavials) offer character support for a grouping of these taxa, making Gavialinae an atavistic taxon. Simple new methods for measuring the influence of extinct taxa on topological support indicate that in this vertebrate order fossils generally stabilize relationships and accentuate hidden phylogenetic signals. Remaining inconsistencies in minimum length trees, including concentrated hierarchical patterns of homopl...Continue Reading

Citations

Jul 14, 2005·Systematic Biology·John Gatesy, Richard H Baker
Oct 11, 2005·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Rob DeSalleMark Siddall
Dec 29, 2007·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Tomas HrbekIzeni Pires Farias
Sep 29, 2009·Journal of Evolutionary Biology·M S Y Lee, A B Camens
Sep 9, 2006·Proceedings. Biological Sciences·Steven W SalisburyPaul M A Willis
Oct 23, 2008·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Taiki KawagoshiYoichi Matsuda
Aug 13, 2005·Biological Reviews of the Cambridge Philosophical Society·Samantha A PriceJohn L Gittleman
May 9, 2009·Journal of Anatomy·Ann HuysseuneP Eckhard Witten
Oct 26, 2011·Evolution; International Journal of Organic Evolution·Jamie R Oaks
Sep 23, 2014·Integrative Zoology·Paolo PirasJorge Cubo
Feb 13, 2016·Genomics & Informatics·Kornsorn SrikulnathNarongrit Muangmai
Apr 17, 2018·Royal Society Open Science·Masaya IijimaYoshitsugu Kobayashi
Oct 1, 2019·Journal of Evolutionary Biology·Pedro L Godoy
Jan 30, 2020·Ecology and Evolution·Christopher M MurrayJ Sean Doody
Dec 19, 2019·Scientific Reports·John R HutchinsonKent A Vliet
Jul 23, 2004·Evolution; International Journal of Organic Evolution·Christopher A Brochu
Mar 9, 2006·Systematic Biology·Robert J Asher, Michael Hofreiter
Feb 12, 2009·Journal of Morphology·Attila Osi, David B Weishampel
Jul 11, 2007·Proceedings of the National Academy of Sciences of the United States of America·Christopher C Gilbert, James B Rossie
Sep 24, 2008·Journal of Evolutionary Biology·Rudyard W Sadleir, Peter J Makovicky
Dec 17, 2014·Genome Biology and Evolution·Alexander SuhJürgen Schmitz
Nov 15, 2012·Scientific Reports·Todd A BlackledgeIngi Agnarsson
May 24, 2019·Integrative and Comparative Biology·Ryan N FeliceAnjali Goswami
Jan 18, 2013·Biochemical Genetics·Taranjeet KaurAlan H K Ong
Mar 8, 2007·Proceedings. Biological Sciences·Jorge Vélez-JuarbeHernán Santos

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